Musnad Ahmad 30:2577

'Abdah ibn Sulayman narrated to us, he said: Muhammad narrated to us, from Abu Salamah, from Abu Hurayrah, who said: The Messenger of Allah, may Allah bless him and grant him peace, said: "I have been given the concise speech (jawami' al-kalim), and the earth has been made for me a place of prostration (masjid) and a means of purification (tahur)."